774 



Fishery Bulletin 100(4) 



Time (CTZ) 

 12 00 12 00 12 00 12 00 12 00 12 00 12 00 12 



^ 22 00 02 04 06 08 10 12 14 16 18 20 22 00 02 



26 O 



Figure 5 



Depth and temperature records for a bigeye tuna carrying an archival 

 tag (99-8691, exhibiting unassociated type-2 behavior Approximate area, 

 2°N 107°W, is based on geolocation estimates from the archival tag. CTZ = 

 central time zone. 



the two spatial distributions was not statistically signifi- 

 cant (f =0.313, P=0. 524). 



The fish with tag 99-793 was at liberty 340 d and ex- 

 hibited behavior associated with floating objects for 9.2% 

 of those days. It traveled initially to the east, remained 

 for a considerable period in a relatively restricted area 

 north of the Galapagos Islands, displayed some range in 

 latitudinal movements between about .5°N and 5°S, and 

 was recaptured only 83 nmi north of its release location 

 (Fig. 9A, Tables 1, 2, and 4i. The fish with tag 99-812 was 

 released at a different FAD and was at liberty for a shorter 

 period (159 d). It exhibited behavior associated with float- 

 ing objects for 15.4% of the days at liberty. In contrast to 

 the fish with tag 99-793, the fish with tag 99-812 traveled 

 westward, displaying a fairly directed movement path, 

 and was subsequently recaptured 821 nmi west of its re- 

 lease location (Fig. 9A, Tables 1, 2, and 4). 



The fish with tag 99-826 was at liberty 272 d and exhib- 

 ited behavior associated with floating objects for 7.5% of 

 those days. It traveled the greatest total distance, display- 

 ing extensive longitudinal and latitudinal movements, 

 and yet was recaptured only 279 nmi west of its release 

 location (Fig. 9B, Tables 1, 2, and 4). The fish with tag 99- 

 804 was released at the same FAD as the fish with tag 

 99-826 and was at liberty for a comparable period (250 d). 

 It exhibited behavior associatede with floating objects for 

 12.4% of the days at liberty. In contrast to the fish with tag 

 99-826, the fish with tag 99-804 displayed a much more 

 constrained movement path. This fish started moving to 

 the northwest during its last few months at liberty and 

 was subsequently recaptured 544 nmi west of its release 

 location (Fig. 9B. Tables 1, 2, and 4). 



The fish with tag 99-792 was at liberty for 183 d and ex- 

 hibited behavior associated with floating objects for 37.5% 



